JPS5673111A - Treatment of waste from high-temperature coagulation bath in production of crimped viscose staple fiber - Google Patents

Treatment of waste from high-temperature coagulation bath in production of crimped viscose staple fiber

Info

Publication number
JPS5673111A
JPS5673111A JP15042079A JP15042079A JPS5673111A JP S5673111 A JPS5673111 A JP S5673111A JP 15042079 A JP15042079 A JP 15042079A JP 15042079 A JP15042079 A JP 15042079A JP S5673111 A JPS5673111 A JP S5673111A
Authority
JP
Japan
Prior art keywords
coagulation bath
waste
solution
treatment
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15042079A
Other languages
Japanese (ja)
Inventor
Michio Adachi
Hidetoshi Hara
Takeshi Miyoshi
Masataka Yamagami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimura Chemical Plants Co Ltd
Original Assignee
Kimura Chemical Plants Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kimura Chemical Plants Co Ltd filed Critical Kimura Chemical Plants Co Ltd
Priority to JP15042079A priority Critical patent/JPS5673111A/en
Publication of JPS5673111A publication Critical patent/JPS5673111A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: The waste of high-temperature coagulation bath solution is concentrated, separated into the solid and liquid parts and the liquid part is reused as the first coagulation bath solution, thus making it possible to recover zinc, sulfuric acid and sodium sulfate, solving the problems of pollution and lowering the production costs.
CONSTITUTION: A viscose dope is extruded into the first coagulation bath to form half regenerated fibers, which is sent to the second coagulation bath where the regeneration is completed to produce crimped viscose staple fibers wherein the waste of high-temperature coagulation solution is concentrated under vacuum, when necessary, cooled to crystallize out sodium sulfate, which is recovered. The mother liquor containing sulfuric acid and zinc sulfate is made to return back along with a make- up solution to the first coagulation bath for reuse.
COPYRIGHT: (C)1981,JPO&Japio
JP15042079A 1979-11-19 1979-11-19 Treatment of waste from high-temperature coagulation bath in production of crimped viscose staple fiber Pending JPS5673111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15042079A JPS5673111A (en) 1979-11-19 1979-11-19 Treatment of waste from high-temperature coagulation bath in production of crimped viscose staple fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15042079A JPS5673111A (en) 1979-11-19 1979-11-19 Treatment of waste from high-temperature coagulation bath in production of crimped viscose staple fiber

Publications (1)

Publication Number Publication Date
JPS5673111A true JPS5673111A (en) 1981-06-17

Family

ID=15496541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15042079A Pending JPS5673111A (en) 1979-11-19 1979-11-19 Treatment of waste from high-temperature coagulation bath in production of crimped viscose staple fiber

Country Status (1)

Country Link
JP (1) JPS5673111A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4882113A (en) * 1972-02-10 1973-11-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4882113A (en) * 1972-02-10 1973-11-02

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